ARIANA GRANDE is set to call off her remaining tour dates after last night’s attack in Manchester, according to reports.

The American singer has yet to officially call off the remaining legs of the Dangerous Woman Tour but TMZ claims that an announcement is imminent.

London's The O2 - where Grande is due in two days' time - posted early this afternoon: "We are shocked and deeply saddened by the terrible tragedy in Manchester. Our thoughts and prayers are with those affected and their families.

"We are in contact with the promoters of Ariana Grande’s tour and will update as soon as we have further information regarding the planned dates at The O2."